THE STATE OF THE ELECTRONIC CATCH ASSESSMENT (eCAS) SURVEY IN RUMAKI SEASCAPE
A case of Kibiti, Mafia, and Kilwa Districts
2023-08-02
Layout
CFMAS
Catch Records
Priority fisheries
Catch Rate Analysis
\[ CatchRate_{(i,j)} = \frac{Weight_{(i,j)}}{Fishers_{(i,j)}} \qquad(1)\] Where:
\(i\) = vessels
\(j\) = priority fishery
Annual Production Analysis
\[ TP = \frac{\gamma}{\iota} \times \frac{\omega}{\alpha} \times \kappa \qquad(2)\] Where:
\(\gamma\) = weight
\(\iota\) = boat gear combination
\(\omega\) = active fishing days
\(\alpha\) = Number of days in a month
\(\kappa\) = Total number of fishing effort (boat gear) in a distric
Quantity by district and priority fishery
Quantity by CFMA and priority fishery
Quantity by CFMA and priority fishery….
Based on the amount of catch data records in the eCAS system, we only selected;
- Six priority fisheries
- Six CFMAS with over 1000 records
eCAS percentage of gear by CFMA
eCAS percentage of gear by Priority fishery
catch rates by Priority fishery & CFMAs
Reef fishery by CFMAS
Small Pelagics fishery by CFMAS
Tuna fishery by CFMAS
Octopus fishery by CFMAS
Elasmobranches fishery by CFMAS
Prawns fishery by CFMAS
Other fisher fishery by CFMAS
Catch rate trend by districts
Catch rate trend by CFMAs
Total production by districts
Total production by systems
Fisheries Performance Indicators
Acknowledgements
Mafia Benthic
